Make sure that the machine is kept where it is not to children.A. possibleB. commonC. acc

问题补充：

Make sure that the machine is kept where it is not to children.

A. possible

B. common

C. accessible

D. Useful

答案：

A. possible

B. common

(答案→)C. accessible

D. Useful

解析：词义辨析题。确保把药品放在孩子够不到的地方。 A. possible 可能 B. common常见 C. accessible 可获得 D. Useful 有用根据语境选C